Update to Go 1.24.2 and fix govulncheck path

Author: openhands-agent

.circleci/config.yml

@@ -9,15 +9,15 @@ workflows:
 jobs:
   build-and-test:
     docker:
-      - image: cimg/go:1.24.0
+      - image: cimg/go:1.24.2
     steps:
       - checkout
       - run: go vet ./...
       - run: go test ./...
   govulncheck:
     docker:
-      - image: cimg/go:1.24.0
+      - image: cimg/go:1.24.2
     steps:
       - checkout
       - run: go install golang.org/x/vuln/cmd/govulncheck@latest
-      - run: govulncheck ./...
+      - run: $(go env GOPATH)/bin/govulncheck ./...